stock slot maf in a 4.5 inch diameter tube
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- Posts: 468
- Joined: 2021 Mar 21, 15:17
- Location: Colorado Springs, CO
- Vehicle Information: 95 Mustang GT, CBAZA Quarterhorse
331, 190 11R heads, Edelbrock Victor 50 manifold, F303, T5, 76mm Turbo, 91 octane, Returnless dual pump 03 cobra tank, Behind bars rails, 80# siemens injectors
wbo2_030MtxL
57 F100, RZASA, 04 Crown Vic ecu and harness, 302, GT40 heads, 4r70w, 80# deka5 shorties, Holley carb style throttle body, Speedmaster high rise intake manifold
stock slot maf in a 4.5 inch diameter tube
My uncle is a machinist and has the ability to make me a custom maf housing that will work with a slot maf. My truck has a 4 barrel throttle body and I want to put a maf on top of the throttle body with an air cleaner on top of that. My goal is to use a 5 inch long air cleaner spacer with a 4.25-4.5 inch inner diameter with a slot maf in it. I am going to use an air straightener at the top (maybe bottom too) of the 5 inch long maf. Im going to try and use a drop down base to help hide the maf. I have an hpx slot maf but I figure since its in such a big housing a stock maf sensor may give me better resolution. My hpx maf in a 4.5 inch housing supports 1800 HP... I definitely dont need that. If I need to, I can shrink the inner diameter down more too but 4.5 inches matches the outer edges of the throttle ports criss-cross from each other. Thoughts?
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- Posts: 5094
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'19 F-150 3.3L
Re: stock slot maf in a 4.5 inch diameter tube
Yeah definitely toss a screen on the bottom too. I'd recommend doubling up on the screens two on the top and two on the bottom.
Yeah a stock maf is all you need with a bore that large it'll support well over 600 hp no problem.
but yeah sounds good to me, I'd go for it.
Yeah a stock maf is all you need with a bore that large it'll support well over 600 hp no problem.
but yeah sounds good to me, I'd go for it.
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- Posts: 468
- Joined: 2021 Mar 21, 15:17
- Location: Colorado Springs, CO
- Vehicle Information: 95 Mustang GT, CBAZA Quarterhorse
331, 190 11R heads, Edelbrock Victor 50 manifold, F303, T5, 76mm Turbo, 91 octane, Returnless dual pump 03 cobra tank, Behind bars rails, 80# siemens injectors
wbo2_030MtxL
57 F100, RZASA, 04 Crown Vic ecu and harness, 302, GT40 heads, 4r70w, 80# deka5 shorties, Holley carb style throttle body, Speedmaster high rise intake manifold
Re: stock slot maf in a 4.5 inch diameter tube
I dont use a screen. I use a honeycomb structure in front of the maf. I have one of these in my charge pipe about 2 inches in front of my maf. I was going to use the 4:1 version in each end.
http://www.saxonpc.com/100mm-cells-for-100.html
http://www.saxonpc.com/100mm-cells-for-100.html
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- Posts: 468
- Joined: 2021 Mar 21, 15:17
- Location: Colorado Springs, CO
- Vehicle Information: 95 Mustang GT, CBAZA Quarterhorse
331, 190 11R heads, Edelbrock Victor 50 manifold, F303, T5, 76mm Turbo, 91 octane, Returnless dual pump 03 cobra tank, Behind bars rails, 80# siemens injectors
wbo2_030MtxL
57 F100, RZASA, 04 Crown Vic ecu and harness, 302, GT40 heads, 4r70w, 80# deka5 shorties, Holley carb style throttle body, Speedmaster high rise intake manifold
Re: stock slot maf in a 4.5 inch diameter tube
What is the largest inner diameter I can get away with using a stock element? It looks like 4.75 is the inner diameter I'm stuck with
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- Posts: 5094
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'19 F-150 3.3L
Re: stock slot maf in a 4.5 inch diameter tube
Not sure what your asking but ive put stock slots in 6" pipe with no problem
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- Posts: 468
- Joined: 2021 Mar 21, 15:17
- Location: Colorado Springs, CO
- Vehicle Information: 95 Mustang GT, CBAZA Quarterhorse
331, 190 11R heads, Edelbrock Victor 50 manifold, F303, T5, 76mm Turbo, 91 octane, Returnless dual pump 03 cobra tank, Behind bars rails, 80# siemens injectors
wbo2_030MtxL
57 F100, RZASA, 04 Crown Vic ecu and harness, 302, GT40 heads, 4r70w, 80# deka5 shorties, Holley carb style throttle body, Speedmaster high rise intake manifold
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- Posts: 5094
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'19 F-150 3.3L
Re: stock slot maf in a 4.5 inch diameter tube
yeah theres a few maf calculators for the alot mafa where u plug in the pipe size and it spits out the curve.
just take a stock slot curve for a 3" pipe and multiply it by 1.8 to get started then dial it in no problem
just take a stock slot curve for a 3" pipe and multiply it by 1.8 to get started then dial it in no problem